Whale Marine BP3708 Gusher 10 Diecast Alloy 17 GPM Manual Bilge Pump with On Deck / On Bulkhead Mount
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You have 30 days to request a return. All sale items are final sale.
The Whale Marine BP3708 Gusher 10 is a high-flow manual bilge pump built for rugged marine use. Designed for on-deck/on-bulkhead mounting, it uses a 1-1/2" smooth hose connection and provides up to 17 GPM performance for fast manual pump-out when you need it.
Key Features
- Manual bilge/waste pump (Gusher® 10 Mk3) designed for on deck or bulkhead mounting (BP3708).
- High-flow, non-choke valve performance rated up to 17 GPM.
- Self-priming design helps deliver consistent pumping action for bilge pump-out.
- Diecast alloy construction with epoxy resin coating plus stainless steel components for marine durability.
- On-deck/bulkhead mount configuration for straightforward access and service.
- Instant access to parts; includes a lanyard for the removable handle.
- 1-1/2" hose connection for smooth-bore plumbing.
Product Compatibility
- Manual bilge pump-out on recreational and commercial vessels.
- On-deck or on-bulkhead manual pumping installations (BP3708 mounting configuration).
- Manual pump-out of effluent holding systems (verify local requirements and ensure correct materials for the application).
- Deck/bilge discharge plumbing systems using 1-1/2" smooth hose connections.
Product Details
- SKU: 698-BP3708
- Type/Model: Whale Marine Gusher® 10 Mk3 manual bilge pump (BP3708)
- Mounting: On Deck / On Bulkhead Mount
- Rated flow: 17 GPM (high-flow, non-choke valves)
- Hose connection: Takes 1-1/2" hose (38mm smooth hose connection)
- Construction: Diecast alloy; epoxy resin coated with synthetic rubber and stainless steel (per product description)
- Service/access: Instant access to all parts and includes a lanyard for the removable handle
- Packaging/contents: Not specified in provided product data
- Weight: 2767 grams (variant weight provided)
Parts Desk Insights
Best Use Case: A strong choice when you want a robust manual backup bilge/waste pump for yachts where quick, high-volume pump-out matters—especially in installations using on-deck/on-bulkhead mounting and 1-1/2" smooth hose routing.
Common Issues: Manual pumps depend on proper installation and hose routing. If pumping feels weak or inconsistent, check that the discharge hose is not restricted, verify correct hose connection to the pump (1-1/2"), and confirm the system is properly sealed at mating surfaces. For service, use the pump’s designed access points/parts access approach and ensure associated serviceable components (like the diaphragm/valve assemblies) are matched to the Mk3 Gusher 10 pump series when replacing.
Related Products & Accessories
- Whale Gusher® 10 Mk3 Service Kits / Spare Parts - Browse the Whale Gusher 10 (Mk3) parts category for service kits and replacement components such as diaphragms/valves and handle assemblies that match the BP3708 series.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.